Have been playing with the idea of how to filter the air a little better for the cvt Here is what I came up with, just used 1.5" ABS from hardware and my old stock air filter for now . If it seams to work OK may use a different filter . Total cost without filter about $12

[2015 Z Force 800 53/Trail EPS]

Getting higher will also help get it out of the dust-zone too. I think I might just..invest in a temp gauge so I can see if all is OK.

So this weekend I installed a TrailTech CVT temp gauge and a forced air blower that I mounted in the bed.  I did mine because its going to be racing and I need function over form.  Its not super pretty but mainly thats because the tube.  I will report back on how it functions once I get it out and beat it some.  But it moves a GOOD amount of air so I suspect it will work fine.

[2015 Z Force 800 53/Trail EPS]

So this weekend I installed a TrailTech CVT temp gauge and a forced air blower that I mounted in the bed.  I did mine because its going to be racing and I need function over form.  Its not super pretty but mainly thats because the tube.  I will report back on how it functions once I get it out and beat it some.  But it moves a GOOD amount of air so I suspect it will work fine.

Good. I'd like to know what kind of temps we are looking at on these.

I have my blower on a switch.  I will run it normal without the blower on to get a "baseline" then kick on the blower to find what it comes down to.

Yeah I didnt want you to take it as "your doing it all wrong".  I just dont see a need for it with my riding conditions and style.  We have small patches of ground around here that we call "sand" but its more like tiny rocks that dont get air born very easy. 

Oh it's F'ed up here. No moisture..no rain...riding in solid clouds of dust and sand everywhere...even in the mountains from mid summer on. You have to wear a face mask all the time. Hell, the exhaust guard the CVT discharge points at looks sand blasted...lol

that is the kind of ride that I do , then what you suggest us to do. In the engine filter and cvt to increase the life of the z8 .

[2015 Z Force 800 53/Trail EPS]

Yeah I didnt want you to take it as "your doing it all wrong".  I just dont see a need for it with my riding conditions and style.  We have small patches of ground around here that we call "sand" but its more like tiny rocks that dont get air born very easy. 

Oh it's F'ed up here. No moisture..no rain...riding in solid clouds of dust and sand everywhere...even in the mountains from mid summer on. You have to wear a face mask all the time. Hell, the exhaust guard the CVT discharge points at looks sand blasted...lol

that is the kind of ride that I do , then what you suggest us to do. In the engine filter and cvt to increase the life of the z8 .

I could only think one thing...do whatever it takes to keep the trash out. For me for the engine that meant one oversized Unifilter in the box and port the intake to the bed and put another one on it there covered with a prefilter. That give me 5 layers of protection for the engine. For the CVT, it needed a filter too but because of the volume, one that can be cleared and cleaned easy so I also ported it's intake to the bed and put a dual coned dry type gauze filter on it also covered with a prefilter. This should work.

[2015 Z Force 800 53/Trail EPS]

UPDATE: 6/17/17

After finally putting this to the test for a week in very dusty conditions I can safely say: I still believe that the reduction of dirt and dust through the CVT system has positive effects on consistent performance and reduction on wear, however this location may not be the best location for the intake and filter as it only took about 30 miles of dusty roads to reduce airflow through the filter causing CVT temps to increase. The actual intake either needs to be higher...or more forward to get enough time between filter cleanings. I was thankful of two things on this ride. One- that I installed a CVT temp gage that told me when the air flow was down and temps were climbing before loosing a belt and Two- that I installed a dry-type filter that could just be popped-off, tapped out on a rock and reinstalled. The amount of dirt and dust it stopped was nothing short of amazing. I would guess in all three cleanings somewhere about a 1/4 of a one gallon paint can of dust was captured between the filter and what was on top of the prefilter. But..the location in the bed is in heavy dust all the time and would have been less if it were somewhere else. The engine air's intake first filter was also packed full but it didn't effect it's running. It may be snorkel-time just to get the intakes out of the main dust cloud.
 

[2015 Z Force 800 53/Trail EPS]

Another update: I have decided after several rides that the bed is no place to have an air filter...especially one for something that uses the kind of volume the CVT system does. Its just so dusty in there that this filter can become restrictive in as little as 10 miles of dusty roads and although I have not had any real problem with the engine air intake, I have decided to take this to the next step and snorkel both these intakes and use inline canister filters to do the work. I will use all 3" parts and I will also incorporate a CVT helper fan for when it needs it. Funny..most people snorkel for deep water...I am snorkeling for deep dust.  I have the parts ordered and will do a wright up. It's an "evolutionary process" I guess. One think I was amazed was the volume of air the CVT can flow through itself. I pulled the air filter off, started it in neutral, put my hand around the open 3" intake and hit the gas with a broom stick. Wow...at about 4K it almost felt like my shop vac in volume (not vacuum). So I am pretty sure any filter on this will be somewhat restrictive as I believe Chuddly suggested.. and I may end up with no filter other then a prefilter in the can. But..that's OK too.   

Yep, bed dust is a problem for filters or passengers. I'm working on making one of these spoilers, out of an old one off a car, to see if it cuts it down any...by angling it up higher over the passengers heads to keep dust from boiling up from the rear. Will probably also have to relocate or zip open the soft rear window.

[2015 Z Force 800 53/Trail EPS]

Yep, bed dust is a problem for filters or passengers. I'm working on making one of these spoilers, out of an old one off a car, to see if it cuts it down any...by angling it up higher over the passengers heads to keep dust from boiling up from the rear. Will probably also have to relocate or zip open the soft rear window.

Yeah there is another guy on here that made a smaller one and says it helps a lot.

Is the filter that is located behind the drivers seat the CVT filter?    I have the twin air filter in the air box but I noticed this weekend when I removed my drivers seat there was a small removable vented panel with a coarse type filter, was not a paper filter.     I took it out and blew the dust out of it and stuck it back.  Not much of a filter.

[2015 Z Force 800 53/Trail EPS]

Is the filter that is located behind the drivers seat the CVT filter?    I have the twin air filter in the air box but I noticed this weekend when I removed my drivers seat there was a small removable vented panel with a coarse type filter, was not a paper filter.     I took it out and blew the dust out of it and stuck it back.  Not much of a filter.

Yep...that the CVT air intake. That little round pad is the filter they use. Doesn't stop much but...doesn't get plugged up fast either. Ever sense I decided to do something else I have been fighting with design and location issues. The plus for me is nothing is getting in the CVT to wear out anything or built up anywhere. The minus is..its a filter taking most everything out and that gets full way too fast..and when it gets full, air slows down...and the heat rises. I now say...If you don't have a problem with dirt and dust where you are...leave it alone

Thanks for the reply .... I didn't find anything about this filter at all in the Operator or Service manuals.   Maybe since its so coarse of a filter its not meant to be cleaned (that often), it was not plugged up by any means just dusty.  Maybe its only meant to stop large particles from getting in??

[2015 Z Force 800 53/Trail EPS]

Thanks for the reply .... I didn't find anything about this filter at all in the Operator or Service manuals.   Maybe since its so coarse of a filter its not meant to be cleaned (that often), it was not plugged up by any means just dusty.  Maybe its only meant to stop large particles from getting in??

Yeah..it'll keep the gravel out..lol